{
    "tag": 12097,
    "title": "Grain size, bulk density, and organic carbon of sediment cores from three locations in the Sacramento-San Joaquin Delta, California, 2017 to 2018",
    "pubdate": "20200518",
    "sername": null,
    "series_name": null,
    "issue": "doi:10.5066\/P9112AIP",
    "publish": null,
    "publisher_name": null,
    "onlink": "https:\/\/cmgds.marine.usgs.gov\/catalog\/pcmsc\/DataReleases\/ScienceBase\/DR_P9112AIP\/Delta_GS-BD-C_2017-2018.faq.html",
    "format": null,
    "email": null,
    "descript": "Bed sediment samples were collected in Lindsey Slough in April 2017, and Middle River and the Mokelumne River in March 2018, to analyze for sediment properties, including bulk density, particle size distribution, and percent organic carbon. Sediment samples were collected within the vegetation with push corers deployed from a small vessel, and in the unvegetated channel with a Gomex box corer, which was subsampled with three push cores per Gomex core. Data are provided in a comma-delimited values spreadsheet. These data were collected as part of a cooperative project, with the USGS California Water Science Center and the California Department of Fish and Wildlife, on the effects of invasive aquatic vegetation on sediment transport in the Sacramento-San Joaquin Delta.",
    "lang": null,
    "journal": null,
    "pwid": null,
    "originator": [
        {
            "name": "Lacy, Jessica R.",
            "role": "Author"
        },
        {
            "name": "Dailey, Evan T.",
            "role": "Author"
        },
        {
            "name": "Ferreira, Joanne C. T.",
            "role": "Author"
        },
        {
            "name": "Dartnell, Peter",
            "role": "Author"
        },
        {
            "name": "Drexler, Judith Z.",
            "role": "Author"
        },
        {
            "name": "Allen, Rachel M.",
            "role": "Author"
        },
        {
            "name": "Stevens, Andrew W.",
            "role": "Author"
        }
    ],
    "index_term": [
        {
            "thcode": 2,
            "code": "1714",
            "name": "bulk density",
            "scope": "Overall density of an unconsolidated earth material."
        },
        {
            "thcode": 2,
            "code": "1420",
            "name": "carbon",
            "scope": "Nonmetal element with symbol C and atomic number 6 <http:\/\/periodic.lanl.gov\/6.shtml>"
        },
        {
            "thcode": 2,
            "code": "2000",
            "name": "dissolved organic compounds",
            "scope": "Organic compounds present in water, typically as anthropogenic contaminants including pharmaceuticals, pesticides, and herbicides."
        },
        {
            "thcode": 2,
            "code": "2067",
            "name": "grab sampling",
            "scope": "Use of a mechanical device to seize a volume of unconsolidated surficial material for study.  This term applies when the device used is specifically crafted for grab sampling."
        },
        {
            "thcode": 2,
            "code": "493",
            "name": "grain-size analysis",
            "scope": "Method of studying soils, sediments, sands, or rock by determining the size, distribution, and proportion of selected particles."
        },
        {
            "thcode": 2,
            "code": "2064",
            "name": "push coring",
            "scope": "Use of a small, hand-held tube pressed into unconsolidated material for sampling."
        },
        {
            "thcode": 2,
            "code": "1025",
            "name": "sea-floor characteristics",
            "scope": "Geomorphic features and geographic, compositional, and textural variation in the materials composing the ocean floor. Includes both large-scale structures (such as seamounts and rises) and fine-scale variations in rocks and deposits on the sea floor."
        },
        {
            "thcode": 2,
            "code": "1034",
            "name": "sediment transport",
            "scope": "Transport of solid particles of unconsolidated rock and mineral fragments, chemical precipitates, or biological materials."
        },
        {
            "thcode": 2,
            "code": "1199",
            "name": "unconsolidated deposits",
            "scope": "Loosely bound sediments such as sand, gravel, and silt which tend to accumulate in low areas or valleys."
        },
        {
            "thcode": 15,
            "code": "014",
            "name": "oceans",
            "scope": "Features and characteristics of salt water bodies (excluding inland waters), for example tides, tidal waves, coastal information, reefs, maritime, outer continental shelf submerged lands, shoreline"
        },
        {
            "thcode": 23,
            "code": "23",
            "name": "Substrate",
            "scope": "Represents the character and composition of the surface and near surface of the sea floor in subtidal or intertidal areas, as defined in the Substrate Component of CMECS or in similar classification systems. Distributions are records of substrate characteristics based on visual or photographic inspection or on analysis of samples and cores, and they also include interpretive maps classifying areas on the basis of combinations of observations, hydrodynamic models, or geological models. Assessments include evaluations of present ecological or economic values of substrate distributions, drivers of substrate change, and functions of substrates. Predictions are the results of models or projections of future substrate distributions, values, or ecological impacts, including predicted substrate changes due to natural and human forces including erosion, accretion, sea-level change, extraction, trawling, or other factors; and they are the results of scenario-based models of substrate changes on ecological or economic values under different management strategies or other human alterations."
        },
        {
            "thcode": 61,
            "code": "220",
            "name": "sediment",
            "scope": "unconsolidated weathering products that have been eroded, transported, and deposited in another location."
        }
    ],
    "place_term": [],
    "image": [
        {
            "name": "https:\/\/www.sciencebase.gov\/catalog\/file\/get\/5ac6a4a3e4b0e2c2dd0e2fd6?name=Delta_GS-BD-C_StudyArea.png&allowOpen=true",
            "description": "Image map showing average values of median grain size (excluding gravel) and ratio of sand, silt, and clay for samples at each sampling location."
        }
    ],
    "fan": [
        "2017-616-FA",
        "2017-675-FA",
        "2018-609-FA"
    ]
}